Standard: 0.6 inches (1.5 cm) Length x 0.8 inches (2 cm) Width

Best Suited for 2mm-3mm Figaro, Cuban Curb & "Flat" Chains / 1mm-2mm for Rope, Franco and "Thicker" chains.

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Large: 0.8 inches (2 cm) Length x 1 inch (2.6 cm) Width

Best Suited for 4mm-5mm Figaro, Cuban Curb & "Flat" Chains / 2mm-3mm for Rope, Franco and "Thicker" chains.